Method test_add

Lib/test/test_binop.py:251–256

(self)

                self.fail("Rat(1, %r) didn't raise TypeError" % bad)

    def test_add(self):
        self.assertEqual(Rat(2, 3) + Rat(1, 3), 1)
        self.assertEqual(Rat(2, 3) + 1, Rat(5, 3))
        self.assertEqual(1 + Rat(2, 3), Rat(5, 3))
        self.assertEqual(1.0 + Rat(1, 2), 1.5)
        self.assertEqual(Rat(1, 2) + 1.0, 1.5)

    def test_sub(self):
        self.assertEqual(Rat(7, 2) - Rat(7, 5), Rat(21, 10))